The structure of a fibrous protein comprises of polypeptide chains in the form of:
Correct answer: D. Long strands or librils
- A. Cluster
- B. Spherical or curled up ball
- C. Flat uncoiled chains
- D. Long strands or librils
Explanation
Fibrous proteins are characterized by their long, elongated strands or fibrils. They have a repeating pattern of secondary structures, such as alpha helices or beta sheets, that align along the length of the protein. This arrangement imparts tensile strength and structural integrity, making fibrous proteins well-suited for providing support and structure in various tissues and cells.
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About Biological Molecules
The chapter covers water's polarity and biological roles, carbohydrates, lipids, proteins and nucleic acids, including their monomers, bonds, structures and functions. It also distinguishes RNA from DNA and explains conjugated molecules such as glycoproteins, glycolipids and nucleoproteins, which combine organic molecules with a non-protein component.
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